Replace the instructions for querying for release notes with the
results of a reno report because some of the broken release notes are
on branches that have been closed and we have no way to edit them.
Fix the markup by replacing LaTeX style quotes with RST quotes.
Change-Id: I4a42c099280a8cd16e9efa3756058b1ed905926c
Signed-off-by: Doug Hellmann <doug@doughellmann.com>